When comparing CodeMix vs CodeRunner, the Slant community recommends CodeRunner for most people. In the question“What are the best Python IDEs or editors?” CodeRunner is ranked 26th while CodeMix is ranked 31st. The most important reason people chose CodeRunner is:
You can have multiple tabs open with multiple languages in at the same time and Code Runner still performs excellently. Searching through code is always instant and executing code is fast.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Newest Python tools for Eclipse
Innovative approach to incorporate VS Code Python dev tools within Eclipse. Includes great HTML tools for web frontend development. The best of both worlds: syntax coloring, great intellisense, validation, debug in the best Eclipse debugger, code navigation...
Pro Intellisense
Best code assist and validation available.
Pro Great debugging
Fully integrated debugging in Eclipse for python (and everything else Eclipse does so well).
Pro Fast and efficient
You can have multiple tabs open with multiple languages in at the same time and Code Runner still performs excellently. Searching through code is always instant and executing code is fast.
Pro Supports many different languages
Code Runner comes preinstalled with over 20 languages built in, and it's super easy to run simple programs.
Cons
Con Works as a plugin to Eclipse
So, if you're not an Eclipse user already and just want a simple editor there are other options.
Con Working with very very large projects
Code runner is fantastic for shorter projects, although it can handle very large projects. It stops code completion when the program gets to be several thousands of lines long.